X square - 4 July 8, 2019 16 32 64 128 X square - 45 x + 324 X square - 4 x + 3 X square - 4 x minus 21 X square - 4 x + 8 X square - 4 x + 5 X/x+square 4 4 square root of x^3 X square 4 0 X square 4x 5 0 X square 4 factorise
